Why reviews gate conversion
Social proof gates conversion. A new listing can carry sharp copy, clean images, and a fair price and still convert poorly, because a shopper who sees no ratings has no reason to trust any of it. The first reviews break that stall, which makes each one worth more than the sale that produced it.
Treat the opening window as a policy problem before a marketing one. The compliant paths are slower and narrower than the shortcuts, and the shortcuts are exactly where beginners lose their accounts. Earn reviews the way the marketplace permits, and let the rest follow from selling a product people actually like.
The channels that are allowed
Three channels earn reviews without breaking any rule. Use all three; none of them is fast.